This week, Toronto was host to the NASCC: The Steel Conference, an annual event organized by the American Institute of Steel Construction.  On March 26, more than 100 delegates enjoyed the opportunity to tour Queen Richmond Centre West, a project currently underway with Eastern Construction.  Specifically, delegates were interested in the design and construction of the delta frames, which feature massive 35,000 lb cast steel nodes in addition to reviewing the "table-top" steel platform, designed to integrate with the reinforced concrete tower above. The delta frames will be the primary elements serving to resist gravity/lateral forces; due to the extreme magnitude of loading, the delta frame members and cast nodes are concrete-filled while intumescent coating provides fire resistance.